20110332221 has 8 divisors (see below), whose sum is σ = 23241476160. Its totient is φ = 17043748128.

The previous prime is 20110332161. The next prime is 20110332259. The reversal of 20110332221 is 12223301102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110332221 - 2⁶ = 20110332157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20110332221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110332521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16139291 + ... + 16140536.

It is an arithmetic number, because the mean of its divisors is an integer number (2905184520).

Almost surely, 2^20110332221 is an apocalyptic number.

It is an amenable number.

20110332221 is a deficient number, since it is larger than the sum of its proper divisors (3131143939).

20110332221 is an equidigital number, since it uses as much as digits as its factorization.

20110332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32279923.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20110332221 its reverse (12223301102), we get a palindrome (32333633323).

The spelling of 20110332221 in words is "twenty billion, one hundred ten million, three hundred thirty-two thousand, two hundred twenty-one".